CLI Guide

Switch Management Commands 2162
dumped. Vital information such as source address, destination address,
control packet type, packet length, and the interface on which the packet is
received or transmitted is displayed on the console. Use the no form of this
command to disable tracing of spanning tree BPDUs.
Syntax
debug spanning-tree bpdu [receive | transmit]
no debug spanning-tree bpdu [receive | transmit]
Default Configuration
Display of spanning tree BPDU traces is disabled by default.
Command Mode
Privileged Exec mode.
User Guidelines
Debug output should be enabled with caution. Switch behavior may be
adversely affected by the additional processing load incurred from enabling
debug.
Example
console#debug spanning-tree bpdu
debug tacacs
Use the debug tacacs command to enable debug tracing of TACACS+
debugging.
Syntax
debug tacacs { packet [ receive | transmit] | accounting | authentication }
no debug tacacs { packet | accounting | authentication }
• packet receive—Enable debugging for received TACACS packets.
• packet transmit—Enable debugging for transmitted TACACS packets.
• accounting—Enable debugging for TACACS accounting packets.
• authentication—Enable debugging for TACACS authentication packets.